IBM RS/6000 - Manual (Page 210)

Figure 55. Operator Panel
An explanation of the LEDs on the front panel of the F30 is given in Table 35.
Table 35. LED Functions
LED Status Definition
Power Good On System power is On
Off System power is Off
Power Enabled On System power is On
Off Power not connected to system
Blinks slowly Power is connected to system
Blinks rapidly AIX memory dump has been initiated by
start/stop method
OK On System electronics are not reporting
errors
Off System electronic failures are detected
Disk Drive Activity On Disk drive active. Also used for POST
error indications in conjunction with
speaker beep and diskette LED
Disk Drive Error Not used by base system, available for
disk drive applications to report errors
Processor Error On System experienced (1) heartbeat
detection lapse, (2) Early Power-Off
Warning (EPOW) condition (fans,
temperature, voltage)
10.6.7 Dealing With Power Failures
If either the E20 or F30 experience a power failure, after the power is restored, they
will not automatically power back up again. Both of the machines will go into
"Standby mode". To boot a machine after a power outage, you will have to press
the button on the front of the system. This could cause problems if the server was
in a remote location. If it is critical that the machine is available after a power loss,
186 Introduction to PCI-Based RS/6000 Servers